| 1 | '''
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| 2 | Tests for commands module
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| 3 | Nick Mathewson
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| 4 | '''
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| 5 | import unittest
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| 6 | import os, tempfile, re
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| 7 |
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| 8 | from test.test_support import run_unittest, reap_children, import_module, \
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| 9 | check_warnings
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| 10 |
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| 11 | # Silence Py3k warning
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| 12 | commands = import_module('commands', deprecated=True)
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| 13 |
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| 14 | # The module says:
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| 15 | # "NB This only works (and is only relevant) for UNIX."
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| 16 | #
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| 17 | # Actually, getoutput should work on any platform with an os.popen, but
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| 18 | # I'll take the comment as given, and skip this suite.
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| 19 |
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| 20 | if os.name != 'posix':
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| 21 | raise unittest.SkipTest('Not posix; skipping test_commands')
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| 22 |
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| 23 |
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| 24 | class CommandTests(unittest.TestCase):
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| 25 |
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| 26 | def test_getoutput(self):
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| 27 | self.assertEqual(commands.getoutput('echo xyzzy'), 'xyzzy')
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| 28 | self.assertEqual(commands.getstatusoutput('echo xyzzy'), (0, 'xyzzy'))
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| 29 |
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| 30 | # we use mkdtemp in the next line to create an empty directory
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| 31 | # under our exclusive control; from that, we can invent a pathname
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| 32 | # that we _know_ won't exist. This is guaranteed to fail.
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| 33 | dir = None
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| 34 | try:
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| 35 | dir = tempfile.mkdtemp()
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| 36 | name = os.path.join(dir, "foo")
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| 37 |
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| 38 | status, output = commands.getstatusoutput('cat ' + name)
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| 39 | self.assertNotEqual(status, 0)
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| 40 | finally:
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| 41 | if dir is not None:
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| 42 | os.rmdir(dir)
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| 43 |
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| 44 | def test_getstatus(self):
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| 45 | # This pattern should match 'ls -ld /.' on any posix
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| 46 | # system, however perversely configured. Even on systems
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| 47 | # (e.g., Cygwin) where user and group names can have spaces:
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| 48 | # drwxr-xr-x 15 Administ Domain U 4096 Aug 12 12:50 /
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| 49 | # drwxr-xr-x 15 Joe User My Group 4096 Aug 12 12:50 /
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| 50 | # Note that the first case above has a space in the group name
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| 51 | # while the second one has a space in both names.
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| 52 | # Special attributes supported:
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| 53 | # + = has ACLs
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| 54 | # @ = has Mac OS X extended attributes
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| 55 | # . = has a SELinux security context
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| 56 | pat = r'''d......... # It is a directory.
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| 57 | [.+@]? # It may have special attributes.
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| 58 | \s+\d+ # It has some number of links.
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| 59 | [^/]* # Skip user, group, size, and date.
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| 60 | /\. # and end with the name of the file.
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| 61 | '''
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| 62 |
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| 63 | with check_warnings((".*commands.getstatus.. is deprecated",
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| 64 | DeprecationWarning)):
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| 65 | self.assertTrue(re.match(pat, commands.getstatus("/."), re.VERBOSE))
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| 66 |
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| 67 |
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| 68 | def test_main():
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| 69 | run_unittest(CommandTests)
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| 70 | reap_children()
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| 71 |
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| 72 |
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| 73 | if __name__ == "__main__":
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| 74 | test_main()
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